# libnss-resolve security updates Patch Radar has 37 security fixes for libnss-resolve, closing 28 CVEs. The newest is libnss-resolve 249.11-0ubuntu3.22 (249.11-0ubuntu3.22), released August 11, 2026. - Web page: https://patchblox.com/security/product/linux/libnss-resolve - Platform: Linux - Supported: yes ## Security fixes, newest first | Fix | Released | Fixed in | Priority | CVEs | Exploited | |---|---|---|---|---:|---:| | [libnss-resolve 249.11-0ubuntu3.22](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-resolve-249.11-0ubuntu3.22.md) | Aug 11, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.22 | Routine | 2 | 0 | | [libnss-resolve 255.4-1ubuntu8.17](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-resolve-255.4-1ubuntu8.17.md) | Aug 11, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.17 | Routine | 2 | 0 | | [libnss-resolve 259.5-0ubuntu3.4](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libnss-resolve-259.5-0ubuntu3.4.md) | Aug 9, 2026 | Ubuntu 26.04.1 LTS (resolute) 259.5-0ubuntu3.4 | Routine | 3 | 0 | | [libnss-resolve 257.9-0ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnss-resolve-257.9-0ubuntu2.3.md) | Apr 15, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.3 | High | 2 | 0 | | [libnss-resolve 255.4-1ubuntu8.14](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-resolve-255.4-1ubuntu8.14.md) | Apr 15, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.14 | High | 2 | 0 | | [libnss-resolve 249.11-0ubuntu3.19](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-resolve-249.11-0ubuntu3.19.md) | Apr 15, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.19 | High | 2 | 0 | | [libnss-resolve 245.4-4ubuntu3.24+esm3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-245.4-4ubuntu3.24-esm3.md) | Apr 15, 2026 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm3 | High | 2 | 0 | | [libnss-resolve 249.11-0ubuntu3.21](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-resolve-249.11-0ubuntu3.21.md) | Apr 10, 2026 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.21 | Routine | 2 | 0 | | [libnss-resolve 255.4-1ubuntu8.16](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-resolve-255.4-1ubuntu8.16.md) | Apr 10, 2026 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.16 | Routine | 1 | 0 | | [libnss-resolve 257.9-0ubuntu2.5](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libnss-resolve-257.9-0ubuntu2.5.md) | Apr 10, 2026 | Ubuntu 25.10 (questing) 257.9-0ubuntu2.5 | Routine | 1 | 0 | | [libnss-resolve 257.4-1ubuntu3.1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-resolve-257.4-1ubuntu3.1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 257.4-1ubuntu3.1 | Routine | 1 | 0 | | [libnss-resolve 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-resolve-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-resolve 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-resolve-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 248.3-1ubuntu3 | Routine | 1 | 0 | | [libnss-resolve 256.5-2ubuntu3.3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-resolve-256.5-2ubuntu3.3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 256.5-2ubuntu3.3 | Routine | 1 | 0 | | [libnss-resolve 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libnss-resolve-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 255.2-3ubuntu1 | Routine | 1 | 0 | | [libnss-resolve 255.2-3ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-resolve-255.2-3ubuntu1.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 255.2-3ubuntu1 | Routine | 1 | 0 | | [libnss-resolve 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-resolve-244.1-0ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-resolve 248.3-1ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libnss-resolve-248.3-1ubuntu3.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 248.3-1ubuntu3 | Routine | 1 | 0 | | [libnss-resolve 245.4-4ubuntu3.24+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-245.4-4ubuntu3.24-esm1.md) | May 30, 2025 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.24+esm1 | Routine | 1 | 0 | | [libnss-resolve 249.11-0ubuntu3.16](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-resolve-249.11-0ubuntu3.16.md) | May 30, 2025 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.16 | Routine | 1 | 0 | | [libnss-resolve 255.4-1ubuntu8.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libnss-resolve-255.4-1ubuntu8.8.md) | May 30, 2025 | Ubuntu 24.04.5 LTS (noble) 255.4-1ubuntu8.8 | Routine | 1 | 0 | | [libnss-resolve 245.4-4ubuntu3.20](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-245.4-4ubuntu3.20.md) | Jan 11, 2023 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.20 | Routine | 2 | 0 | | [libnss-resolve 249.11-0ubuntu3.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libnss-resolve-249.11-0ubuntu3.7.md) | Jan 11, 2023 | Ubuntu 22.04.1 LTS (jammy) 249.11-0ubuntu3.7 | Routine | 2 | 0 | | [libnss-resolve 237-3ubuntu10.57](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.57.md) | Nov 8, 2022 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.57 | Routine | 1 | 0 | | [libnss-resolve 237-3ubuntu10.54](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.54.md) | Aug 23, 2022 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.54 | High | 1 | 0 | | [libnss-resolve 245.4-4ubuntu3.15](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-245.4-4ubuntu3.15.md) | Jan 9, 2022 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.15 | Routine | 1 | 0 | | [libnss-resolve 237-3ubuntu10.49](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.49.md) | Jul 20, 2021 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.49 | Routine | 2 | 0 | | [libnss-resolve 245.4-4ubuntu3.10](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-245.4-4ubuntu3.10.md) | Jul 20, 2021 | Ubuntu 20.04 LTS (focal) 245.4-4ubuntu3.10 | Routine | 2 | 0 | | [libnss-resolve 237-3ubuntu10.38](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.38.md) | Feb 5, 2020 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.38 | High | 4 | 0 | | [libnss-resolve 244.1-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libnss-resolve-244.1-0ubuntu3.md) | Feb 5, 2020 | Ubuntu 20.04 LTS (focal) 244.1-0ubuntu3 | High | 1 | 0 | | [libnss-resolve 237-3ubuntu10.28](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.28.md) | Sep 2, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.28 | Routine | 1 | 0 | | [libnss-resolve 237-3ubuntu10.19](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.19.md) | Apr 7, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.19 | High | 1 | 0 | | [libnss-resolve 237-3ubuntu10.13](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.13.md) | Feb 18, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.13 | High | 1 | 0 | | [libnss-resolve 237-3ubuntu10.11](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.11.md) | Jan 10, 2019 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.11 | High | 3 | 0 | | [libnss-resolve 237-3ubuntu10.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.6.md) | Oct 25, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.6 | Routine | 2 | 0 | | [libnss-resolve 237-3ubuntu10.4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.4.md) | Oct 25, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.4 | Routine | 1 | 0 | | [libnss-resolve 237-3ubuntu10.9](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libnss-resolve-237-3ubuntu10.9.md) | Feb 12, 2018 | Ubuntu 18.04.6 LTS (bionic) 237-3ubuntu10.9 | Routine | 1 | 0 | --- Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo